The first column is a little less formal and more common (in my understanding of typical American English at least), so I'd give it a more prominent color. You can mark this scale with something like an upside-down triangle to show a simple transition from a lot at the top to none at the bottom.
| "How _____?" | |
|---|---|
| totally _____ | extremely _____ |
| really _____ | very _____ |
| pretty _____ | fairly _____ |
| kind of _____ | somewhat _____ |
| not so _____ | not very _____ |
| not _____ at all | |